IPSWFollowing the release of iOS 12.4 on July 22, Apple has stopped signing iOS 12.3.1 and iOS 12.3 the previous versions of iOS that were available to consumers. Apple is also no longer signing iOS 12.3.2, an update exclusive to the iPhone 8 Plus.

‌iPhone‌, iPad, and iPod touch owners who have upgraded to iOS 12.4 will no longer be able to downgrade to iOS 12.3, 12.3.1, or 12.3.2.

iOS 12.4, available on all devices able to run iOS 12, was a major update with Apple News+ improvements and a new device-to-device data migration option when setting up a new ‌iPhone‌.

Apple routinely stops signing older versions of software updates after new releases come out in order to encourage customers to keep their operating systems up to date.

iOS 12.4 is now the only version of iOS that can be installed on iPhones and iPads, but developers and public beta testers can download iOS 13, an upcoming update that's currently being beta tested.

Top Rated Comments

C DM Avatar
85 months ago
...
Except that most are just fine updating.
Score: 3 Votes (Like | Disagree)
- rob - Avatar
85 months ago
This is good for the security of all iOS users.
Score: 2 Votes (Like | Disagree)
Junipr Avatar
85 months ago
However, Apple is still signing their LEGO blocks with iPod Classic
Score: 2 Votes (Like | Disagree)
I7guy Avatar
85 months ago
12.4 is a stellar release, IMO, on my max and xr. Works great on my 5s also.
Score: 1 Votes (Like | Disagree)
I7guy Avatar
85 months ago
Shame it didn't fix all six Zero days with iMessage I belive. it had six fixes but one CVE is still listed as vulnerable by Project Zero who are not releasing the information at this time, as it takes no intraction from the user which is scary, so I imagine we will see a 12.4.1 or whatever its called to patch the last vulnerability quite quickly.

https://www.zdnet.com/article/google-researchers-disclose-vulnerabilities-for-interactionless-ios-attacks/

"Details about one of the "interactionless" vulnerabilities have been kept private because Apple's iOS 12.4 patch did not completely resolve the bug, according to Natalie Silvanovich, one of the two Google Project Zero researchers who found and reported the bugs."
Been living with windows zero day vulnerabilities for 10+ years and I consider the surface area of attacks for windows far greater than iOS. Apple will release 12.4.1 that will resolve the last issue.
Score: 1 Votes (Like | Disagree)
killhippie Avatar
85 months ago
12.4 is a stellar release, IMO, on my max and xr. Works great on my 5s also.
Shame it didn't fix all six Zero days with iMessage I belive. it had six fixes but one CVE is still listed as vulnerable by Project Zero who are not releasing the information at this time, as it takes no intraction from the user which is scary, so I imagine we will see a 12.4.1 or whatever its called to patch the last vulnerability quite quickly.

https://www.zdnet.com/article/google-researchers-disclose-vulnerabilities-for-interactionless-ios-attacks/

"Details about one of the "interactionless" vulnerabilities have been kept private because Apple's iOS 12.4 patch did not completely resolve the bug, according to Natalie Silvanovich, one of the two Google Project Zero researchers who found and reported the bugs."
Score: 1 Votes (Like | Disagree)

Popular Stories

Aston Martin CarPlay Ultra Screen

Apple's CarPlay Ultra to Expand to These Vehicle Brands Later This Year

Sunday February 1, 2026 10:08 am PST by
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly nine months later, CarPlay Ultra is still limited to Aston Martin's latest luxury vehicles, but that should change fairly soon. In May 2025, Apple said many other vehicle brands planned to offer CarPlay Ultra, including Hyundai, Kia, and Genesis. In his Powe...
Apple Logo Black

Apple's Next Launch is 'Imminent'

Sunday February 1, 2026 12:31 pm PST by
The calendar has turned to February, and a new report indicates that Apple's next product launch is "imminent," in the form of new MacBook Pro models. "All signs point to an imminent launch of next-generation MacBook Pros that retain the current form factor but deliver faster chips," Bloomberg's Mark Gurman said on Sunday. "I'm told the new models — code-named J714 and J716 — are slated...
iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
We are still waiting for the iOS 26.3 Release Candidate to come out, so the first iOS 26.4 beta is likely still at least a week or two away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...
Apple MacBook Pro M4 hero

New MacBook Pros Reportedly Launching Alongside macOS 26.3

Sunday February 1, 2026 5:42 am PST by
Apple is planning to launch new MacBook Pro models with M5 Pro and M5 Max chips alongside macOS 26.3, according to Bloomberg's Mark Gurman. "Apple's faster MacBook Pros are planned for the macOS 26.3 release cycle," wrote Gurman, in his Power On newsletter today. "I'm told the new models — code-named J714 and J716 — are slated for the macOS 26.3 software cycle, which runs from...
iOS 26 Home Feature

Apple Gives Final Warning to Home App Users

Tuesday February 3, 2026 8:55 am PST by
In 2022, Apple introduced a new Apple Home architecture that is "more reliable and efficient," and the deadline to upgrade and avoid issues is fast approaching. In an email this week, Apple gave customers a final reminder to upgrade their Home app by February 10, 2026. Apple says users who do not upgrade may experience issues with accessories and automations, or lose access to their smart...